Answer:
To select a <u>stratified</u> random sample, first classify the population into groups of similar individuals, then choose a separate SRS in each group and combine these SRS to form the full sample
Step-by-step explanation:
Stratified random sampling involved dividing the population into small groups of similar individuals (called strata) and then from among those groups, a stratified random sample is selected and then, all these samples are combined to form the full sample. Hence, the missing word in this sentence is <u>stratified.</u>
Answer:
33/355
not sure though
Step-by-step explanation:
Answer:
256
Step-by-step explanation:
64(15-1x2-9)
64(15-2-9)
64 x 4
256
<h3>
Answer: D) 5/2</h3>
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Explanation:
The parabola is symmetric around its vertex. This means that the roots are the same horizontal distance away from the vertex. Furthermore, we can apply the midpoint formula on the given roots to find the x coordinate of the vertex.
Find the midpoint of 2 and 3 to get (2+3)/2 = 5/2
Note: 5/2 = 2.5
